or
var masterTable = $find('<%=RadGrid1.ClientID %>').get_masterTableView();
var editIndex = $find("<%=RadGrid1.ClientID %>")._editIndexes;
var btn = masterTable.get_dataItems()[editIndex].findControl('btnBracketLookup');
var selectedBracket = sender.get_selectedItem().get_value(); if (selectedBracket == -1) { btn.set_visible(false); }function GetFirstItemContactNameCell() { var masterTable = $find("<%=RadGrid1.ClientID%>").get_masterTableView(); var contactName = masterTable.getCellByColumnUniqueName(masterTable.get_dataItems()[0], "ContactName").innerHTML;}